Miques a gaz systems schoonjans



(No Model.)

G; SOHOONJANS. GAS HEATING APPARAlUs.y

Patented Aug. 31,1897.

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UNITED STATES IPATENT OFFICE.

GUILLAIIMESCHOONJANS, 'OF BRUSSELS, BELGIUM, ASSIGNOR TO THE SOCIETEANONYMEPOUR LEXPLOITATION DESv APPAREILS ECONO- MIQUES A GAZ SYSTEMESCIIOONJANS, OFVSAME PLACE.

GAS HEATINGl APPARTUS.

SPECIFICATION forming part of Letters Patent No. 589,306, dated August31, 1897.. Application tied Apiil2a1897. siriana. 633,947, (No model.)Patented iii Belgium gep'teber I7', 1,895,110. 117,449; iii

GermanyDecelnher 14, 1895, No. 88,564; in England December 14, 1895, No.24,012;

254,965, and in Austria April26,1896,No.46/l,620.

iii rma Minoli 21, 1396, No.

T all whom it ned/y concern,-

Be it known that 1, GUILLAUME ScHooN- JANS, a Belgian subject, residingatV Brussels, Belgium, have invented new and useful Improvements in GasHeating Apparatus, (for which I have obtained patents in Belgium,

` No. 117,449, dated September 17, 1895; in

Germany, No. 88,564, dated December 14, 1895; in Great Britain, No.24,012, dated December 14, 1895; in France, No. 254,965, dated March 21,1896, and in Austria, No. 46/1,620, dated April 26, 1896,) of which thefollowing is a specification.

This gas heating apparatus is especially in-l tended for assays and forthe smelting of gold, silver, and the like and produces, by agaspressure of twenty millimeters and an average gas consumption of livehundred liters per hour, a heat in the furnace above it of about 1,10()ocentigrade.

The apparatus may alsobe used for other heating purposes or for theboiling of water and other substances in laboratories or in houses.

I will now describe my invention with reference to the accompanyingdrawings, in

. which-` l Figure 1 shows a sectional elevation of my gas heatingapparatus intended lnore especially for general use. Fig. 2 shows aplanView of disk Q. Fig. 3 shows a modified forln of my gas heatingapparatus, and Fig. 4 shows a plan view of Fig. 3.

vReferring to Figs. 1 and 2, the burner-tube D has a closed top K andlateral dischargeperforations L. Said tube rests in a seat P, formedupon the tube G, into which the gas is discharged from la jet I-I andinto which the air for the Bunsen flame is drawn through the mouth A.The burner D isV surrounded by a cup-shaped shell or recuperator F,flaring upwardly and having lateral air-inlet openings M, adapted tolead a supply of air to the llame. Around the shell F a heat-retainingmantle E is placed, with a space between it and the mantle, and intothis space air is let through openings B in a plate or disk Q.

This air is heated prior to its contact with the gas-flame. Y

The mantle E is supported by legs, so that the outside air may be drawnthroughfthe openings B in the disk Q. lThe mantle E has aninwardly-extending flange at its upper end, and between this and theVtop of the shell F a small space is left for the entrance of the heatedair above theburner and into the flame issuing therefrom.

An annular riln .I is arranged above the shell F, llpon which rests theCrucible. to be heated. z

In Figs. 3 and 4 the parts lettered A, II, G, Q, B, P, K, L, and M arethe same as those above described, these figures being for amodification differing from the forln of Figs. 1 and 2 in the followingparticulars: In this form a cylindrical shell F surrounds the elongatedburner-tube D, and within this shell a ring O is placed with a dead-airspace N between it and theshell, so that the heat will be retainedwithin the shell, the air-space acting as a non-conductor. Between thering O and the elongated burner a series of balls c is placed, the lowerballs being larger to bridge the `space about the mouth of the openingIWI and support the upper smaller balls c. These balls become heated byconduction and radiation, and they form an air-distributer by which` therising column of air is broken up and fully heated.

The heat-retaining mantle extends to the vtop of the yshell Fto theCrucible-support J I clailn- 1. InV colnbination, the .burner tube, theBunsen tube G leading thereto, ashell surrounding the burner-tube andhaving openings M for the inlet of the air, a mantle surrounding theshell, and a diskQ having openings connecting with the space'between themantle and shell, substantially as described.

2. In combination, the burner, the Bunsen tube connecting therewith, theshell surrounding the burner and having openings M for the inlet of air,the ring O inserted within the shell with a dead-air space N between the4. In combination, the burner, the perforated shell about the samehaving the upwardly-flared outer Walls, the Bunsen tube leading to theburner, the perforated disk Q and the cylindrical mantle about theshell, substantially as described.

In witness whereof I have hereunto set my zo handin presence of twoWitnesses.

GUILLAUME SCHOONJANS.

lVitnesses:

H. E. E. OTIENPUTRIEN, J. J. KIRKPATRICK.

